<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <table border="1" width="500" height="300" cellspacing="0" cellpadding="50"  align="center">
        <thead>
    <tr>
    <th>姓名</th>
    <th>性别</th>
    <th>年龄</th>
    </tr>
    <!-- <th>姓名</th>
    <th>性别</th>
    <th>年龄</th> -->
     </thead>
        <!-- <tr>
    <td>姓名</td>
    <td>性别</td>
    <td>年龄</td>
   </tr> -->
   <tbody>
    <tr>
    <td>张三</td>
    <td rowspan="2">男</td>
    <td>3</td>
   </tr>
   <tr>
    <td>李四</td>
    <!-- <td>男</td> -->
    <td>4</td>
   </tr>
   <tr>
    <td colspan="3">王五/女/5</td>
    <!-- <td>女</td>
    <td>5</td> -->
   </tr>
   </tbody>

    </table>
   
    
</body>
</html>